39492138 has 24 divisors (see below), whose sum is σ = 91880352. Its totient is φ = 11283384.

The previous prime is 39492119. The next prime is 39492151. The reversal of 39492138 is 83129493.

It is a super-2 number, since 2×39492138² = 3119257927622088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 39492096 and 39492105.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66870 + ... + 67457.

It is an arithmetic number, because the mean of its divisors is an integer number (3828348).

Almost surely, 2^39492138 is an apocalyptic number.

39492138 is an abundant number, since it is smaller than the sum of its proper divisors (52388214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39492138 is a wasteful number, since it uses less digits than its factorization.

39492138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134346 (or 134339 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 39492138 is about 6284.2770467254. The cubic root of 39492138 is about 340.5416338136.

The spelling of 39492138 in words is "thirty-nine million, four hundred ninety-two thousand, one hundred thirty-eight".